FNUS76 KSTO 191646 FWSSTO Spot Forecast for Red Bluff VM RX...CAL FIRE National Weather Service Sacramento CA 946 AM PDT Tue May 19 2026 Forecast is based on ignition time of 0800 PDT on May 20. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Dry weather prevails through the week with a gradual warming trend. Daytime minimum humidity in the teens is expected with modest overnight humidity recovery. Winds will generally remain light under 10 mph. .WEDNESDAY... Sky/weather.........Sunny. Max temperature.....91-95. Min humidity........11-15 percent. Wind (20 ft)........ Slope/valley.......North winds 5 to 7 mph early in the morning becoming light, then becoming southeast up to 6 mph late in the afternoon. Ridgetop...........West 6 to 12 mph. Mixing height.......7200 ft AGL. Transport winds.....North 6 to 8 mph shifting to the southwest around 6 mph late in the afternoon. CWR.................0 percent. Chance of thunder...0 percent. TIME (PDT) 8 AM 10 AM NOON 2 PM 4 PM Sky cover.......PCLDY PCLDY CLEAR CLEAR CLEAR CWR.............0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 Temp............66 77 85 90 91 RH..............40 27 19 15 13 SL/VL wind......N 6 N 6 N 3 SE 3 SE 6 SL/VL wind gust.8 8 7 7 8 Ridgetop wind...W 12 W 10 W 8 W 7 W 6 Mix hgt (ft)....1400 1400 4400 7200 7200 Transport wind..N 8 N 8 N 6 SW 6 SW 6 .WEDNESDAY NIGHT... Sky/weather.........Mostly clear. Min temperature.....59-63. Max humidity........52-56 percent. Wind (20 ft)........ Slope/valley.......Southeast winds up to 6 mph shifting to the north late in the evening. Ridgetop...........West 2 to 5 mph. Mixing height.......400 ft AGL. Transport winds.....South around 6 mph shifting to the northwest 6 to 8 mph late in the evening. CWR.................0 percent. Chance of thunder...0 percent. TIME (PDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky cover.......MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR CWR.............0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 Temp............93 87 76 70 66 63 RH..............13 22 32 39 46 52 SL/VL wind......SE 6 SE 5 SE 5 N 5 N 6 N 6 SL/VL wind gust.8 6 6 6 7 7 Ridgetop wind...W 5 W 5 W 3 W 3 W 2 W 2 Mix hgt (ft)....4300 400 400 400 400 400 Transport wind..S 6 S 6 S 6 NW 6 N 8 N 8 .THURSDAY... Sky/weather.........Sunny. Max temperature.....95-99. Min humidity........9-13 percent. Wind (20 ft)........ Slope/valley.......North winds 5 to 6 mph in the morning becoming light, then becoming south 5 to 7 mph late in the afternoon. Ridgetop...........West 2 to 5 mph. Mixing height.......7500 ft AGL. Transport winds.....North 7 to 9 mph shifting to the southwest 7 to 8 mph late in the afternoon. CWR.................0 percent. Chance of thunder...0 percent. TIME (PDT) 6 AM 9 AM NOON 3 PM Sky cover.......PCLDY MCLEAR CLEAR CLEAR CWR.............0 0 0 0 Chc of thdr (%).0 0 0 0 Temp............62 73 89 96 RH..............54 37 20 13 SL/VL wind......N 6 N 6G7 N 3G7 S 6G9 Ridgetop wind...W 2 W 1 W 1 W 2 Mix hgt (ft)....400 800 2900 7500 Transport wind..N 8 N 9 N 7 SW 7 $$ Forecaster...CC Requested by...RDS2 Type of request...PRESCRIBED .TAG 2613464.0/STO .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL trang.nguyen@fire.ca.gov,Gabriel.Trull@fire.ca.gov